Three-dimensional printer



FIG. 1 is a top, front, right side perspective view of a first embodiment of a three-dimensional printer according to our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top, front, right side perspective view of a second embodiment of the three-dimensional printer;

FIG. 9 is a front elevation view thereof;

FIG. 10 is a rear elevation view thereof;

FIG. 11 is a left side elevation view thereof;

FIG. 12 is a right side elevation view thereof;

FIG. 13 is a top plan view thereof;

FIG. 14 is a bottom plan view thereof;

FIG. 15 is a top, front, right side perspective view of a third embodiment of the three-dimensional printer;

FIG. 16 is a front elevation view thereof;

FIG. 17 is a rear elevation view thereof;

FIG. 18 is a left side elevation view thereof;

FIG. 19 is a right side elevation view thereof;

FIG. 20 is a top plan view thereof; and,

FIG. 21 is a bottom plan view thereof.

The dot-dash broken lines and dash-dash broken lines immediately adjacent to the shaded areas depict the bounds of the claimed design and form no part of the claimed design. All other dash-dash broken lines depict portions of the three-dimensional printer that form no part of the claimed design. In addition, the unshaded bottom surface that directly adjoins the claimed bottom front edge forms no part of the claimed design.

The oblique line shading represents transparency. 

CLAIM The ornamental design for a three-dimensional printer, as shown and described. 